www.isi21.com - robtex.com

www.isi21.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a893🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:1ae7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.26.231Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.147🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.26.231, 172.67.168.147
IPv62606:4700:3030::ac43:a893, 2606:4700:3032::6815:1ae7

isi21.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a893🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:1ae7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.26.231Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.147🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelaine.ns.cloudflare.com ⭐
NSmario.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.26.231, 172.67.168.147
IPv62606:4700:3030::ac43:a893, 2606:4700:3032::6815:1ae7
SOAelaine.ns.cloudflare.comdns@cloudflare.com serial=2396956567
WOT: SAFE (60/100)
WOT: UNKNOWN (60/100)

Same first word

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DNS History

11 records (4 active, 7 former)

200920112013201520172019202120232025NSbuy.internettraffic.comns1.uniregistrymarket.linkns2.uniregistrymarket.linksell.internettraffic.comA104.21.26.231172.67.168.1472606:4700:3030::ac43:a8932606:4700:3032::6815:1ae7185.51.145.5369.172.201.15369.172.201.208
○NSbuy.internettraffic.com2015-05-27 → 2016-04-08 · 5 obs
○ 2008-12-09 15:05:36
● 2015-05-27 18:07:22
● 2016-04-08 21:33:34
○ 2017-01-08 06:17:52
○ 2026-03-24 16:20:22
○NSns1.uniregistrymarket.link2017-01-08 → 2018-09-02 · 5 obs
○ 2016-04-08 21:33:34
● 2017-01-08 06:17:52
● 2018-09-02 05:41:28
○ 2026-02-23 05:09:12
○ 2026-03-24 16:20:22
○NSns2.uniregistrymarket.link2017-01-08 → 2018-09-02 · 5 obs
○ 2016-04-08 21:33:34
● 2017-01-08 06:17:52
● 2018-09-02 05:41:28
○ 2026-02-23 05:09:12
○ 2026-03-24 16:20:22
○NSsell.internettraffic.com2015-05-27 → 2016-04-08 · 5 obs
○ 2008-12-09 15:05:36
● 2015-05-27 18:07:22
● 2016-04-08 21:33:34
○ 2017-01-08 06:17:52
○ 2026-03-24 16:20:22
●A104.21.26.2312026-02-23 → 2026-03-24 · 3 obs
○ 2018-09-02 05:41:28
● 2026-02-23 05:09:12
● 2026-03-24 16:20:22
●A172.67.168.1472026-02-23 → 2026-03-24 · 3 obs
○ 2018-09-02 05:41:28
● 2026-02-23 05:09:12
● 2026-03-24 16:20:22
○A185.51.145.532018-09-02 → 2018-09-02 · 4 obs
○ 2017-01-08 06:17:52
● 2018-09-02 05:41:28
○ 2026-02-23 05:09:12
○ 2026-03-24 16:20:22
●A2606:4700:3030::ac43:a8932026-02-23 → 2026-03-24 · 3 obs
○ 2018-09-02 05:41:28
● 2026-02-23 05:09:12
● 2026-03-24 16:20:22
●A2606:4700:3032::6815:1ae72026-02-23 → 2026-03-24 · 3 obs
○ 2018-09-02 05:41:28
● 2026-02-23 05:09:12
● 2026-03-24 16:20:22
○A69.172.201.1532017-01-08 → 2017-01-08 · 4 obs
○ 2016-04-08 21:33:34
● 2017-01-08 06:17:52
○ 2018-09-02 05:41:28
○ 2026-03-24 16:20:22
○A69.172.201.2082015-05-27 → 2016-04-08 · 5 obs
○ 2008-12-09 15:05:36
● 2015-05-27 18:07:22
● 2016-04-08 21:33:34
○ 2017-01-08 06:17:52
○ 2026-03-24 16:20:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
isi21.comelaine.ns.cloudflare.com, mario.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.152

NS records: elaine.ns.cloudflare.com, mario.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isi21.com (unsigned zone)

⏱️ Timing

Total: 163ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.26.231, 172.67.168.147
AAAA22606:4700:3032::6815:1ae7, 2606:4700:3030::ac43:a893
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (elaine.ns.cloudflare.com, elaine.ns.cloudflare.com, elaine.ns.cloudflare.com...)

Analysis

IP Addresses

www.isi21.com points to four IP numbers: 2606:4700:3030::ac43:a893, 2606:4700:3032::6815:1ae7, 104.21.26.231 and 172.67.168.147.

Other host names including heovl.net, andybernstein.com, spawales.org, phlwin-casino-web.com and rivertownbistro.net share IP numbers with www.isi21.com.